It is unknown when the arms were conferred or adopted.
The arms were adopted in 1900, although this was not made official until 1926.
The seal and arms were adopted by the city in 1874.
The hand (bottom right corner) was the symbol of the dominant party in 1963 when the original arms were adopted.
These arms were adopted by Richard in about 1395.
The arms were adopted on 12 July 1996.
These arms were adopted on 28 June 1972.
His arms were adopted for those of the see.
These arms are no longer in official use, and no new arms have yet been adopted.
The current arms were adopted on 3 July 1972.